A hydraulic support bottom adjusting device

Abstract

The utility model belongs to the bottom adjusting device technical field, concretely relates to a hydraulic support bottom adjusting device. First ear seat, stop piece and second ear seat are fixedly arranged on the hydraulic support base respectively, first ear seat, stop piece and second ear seat are arranged on the same straight line, first ear seat, stop piece and second ear seat set position and hydraulic support base bottom edge level, first ear seat and second ear seat are arranged on the both sides of stop piece respectively, push rod subassembly one end is hinged with first ear seat through first pin shaft, push rod subassembly other end is hinged with bottom adjusting jack piston rod one end through third pin shaft, bottom adjusting jack base is fixedly connected with fourth pin shaft, and fourth pin shaft is hinged with second ear seat. Bottom adjusting jack is horizontally arranged on the outside of hydraulic support, avoids the process hole on the base completely, effectively guarantees the integrity of base structure and material strength, improves the overall rigidity and carrying capacity of hydraulic support.

Description

Technical Field

[0001] This utility model belongs to the technical field of bottom adjustment devices, specifically relating to a hydraulic support bottom adjustment device. Background Technology

[0002] In fully mechanized coal mining faces, hydraulic supports, as core support equipment, play a crucial role in ensuring the stability of the support system through the adjustment of their base position and attitude. The bottom adjustment device, an important component of the hydraulic support, constitutes the support's active anti-slip system. It not only corrects base misalignment and straightens the support's posture after support relocation but also acts as a guide during relocation, effectively suppressing base slippage. This ensures the overall stability of the support system and facilitates the smooth advancement of the scraper conveyor, enabling safe and efficient mining operations. However, traditional bottom adjustment devices typically install the bottom adjustment jacks perpendicular to the main ribs of the base. Due to structural space limitations, the jacks often need to be built into the base, making oil pipe connections and overall installation extremely inconvenient. For ease of operation, process holes are usually opened on the base, which not only weakens the overall integrity and strength of the base structure but also increases the difficulty of disassembly and maintenance after equipment damage. Therefore, a new structure is urgently needed to overcome these shortcomings and improve the maintainability of the bottom adjustment device and the structural integrity of the base. Utility Model Content

[0003] This utility model aims to at least solve one of the technical problems existing in the prior art. To this end, one aspect of the purpose of this utility model is to provide a hydraulic support bottom adjustment device, the bottom adjustment device including a fixing component, a connecting component, a push rod component, a limiting component, and a bottom adjustment jack. The fixing component includes a first ear seat and a second ear seat. The connecting component includes a first pin, a third pin, and a fourth pin. The first ear seat, the limiting component, and the second ear seat are respectively fixedly mounted on the hydraulic support base. The first ear seat, the limiting component, and the second ear seat are arranged on the same straight line. The positions of the first ear seat, the limiting component, and the second ear seat are horizontal with the bottom edge of the hydraulic support base. The first ear seat and the second ear seat are respectively located on both sides of the limiting component. One end of the push rod component is hinged to the first ear seat through the first pin, and the other end of the push rod component is hinged to one end of the piston rod of the bottom adjustment jack through the third pin. The bottom adjustment jack base is fixedly connected to the fourth pin, and the fourth pin is hinged to the second ear seat.

[0004] Preferably, the push rod assembly includes a long hinge rod and a short hinge rod. One end of the long hinge rod is hinged to the first lug via a first pin, and the other end of the long hinge rod is hinged to the short hinge rod. The other end of the short hinge rod is hinged to one end of the bottom adjustment jack piston rod via a third pin.

[0005] Preferably, the connecting assembly further includes a second pin, through which the long hinge rod is hinged to the short hinge rod.

[0006] Preferably, the limiting component includes a limiting groove, the limiting groove being oriented in the same direction as the movement direction of the bottom adjustment jack piston rod, the bottom adjustment jack piston rod sliding within the limiting groove, and the short hinge rod and the third pin being slidably disposed within the limiting groove.

[0007] Preferably, two sets of bottom adjustment devices are arranged in parallel, with the two sets of bottom adjustment devices facing opposite directions, and the two sets of bottom adjustment devices are respectively located at the two top ends of the hydraulic support base.

[0008] Preferably, the bottom adjustment device further includes a protective plate, which is disposed above the bottom adjustment device and fixedly mounted on the hydraulic support base. The width of the protective plate is greater than any one of the fixing component, the limiting component, or the bottom adjustment jack.

[0009] The beneficial effects of this utility model are as follows: Optimize the structural layout and enhance overall strength: The bottom-mounted jack is horizontally set on the outside of the hydraulic support, which completely avoids drilling process holes on the base, effectively ensuring the integrity of the base structure and the strength of the materials, and improving the overall rigidity and load-bearing capacity of the hydraulic support.

[0010] Easy to install and maintain: The external installation method greatly expands the operating space, making it easier to connect oil pipes, conduct daily inspections of equipment, and disassemble and repair after damage, significantly reducing the difficulty and time cost of maintenance work.

[0011] Precise guidance and reliable frame adjustment: The movement trajectory of the third pin is precisely constrained by the limit groove, ensuring that the thrust of the bottom adjustment jack always acts in a direction parallel to the base, realizing precise and efficient frame posture adjustment and reset, and making the anti-slip and correction functions more stable and reliable.

[0012] Additional aspects and advantages of this invention will become apparent from the description which follows, or may be learned by practice of this invention. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the hydraulic support bottom adjustment device of this utility model; Figure 2 This is a schematic diagram of the hydraulic support bottom adjustment device of this utility model in use; Figure 3 This is a schematic diagram of the two sets of structures of the hydraulic support bottom adjustment device of this utility model; Figure 4This is a schematic diagram of the two sets of structures of the hydraulic support bottom adjustment device of this utility model; Figure 5 This is the protective plate for the bottom adjustment device of the hydraulic support of this utility model; Figure 6 This is a schematic diagram of the hydraulic support bottom adjustment device of this utility model in use; The correspondence between the reference numerals and component names in the figure is as follows: 1 is a fixing component, 11 is a first ear seat, 12 is a second ear seat, 2 is a connecting component, 21 is a first pin, 22 is a second pin, 23 is a third pin, 24 is a fourth pin, 3 is a push rod assembly, 31 is a long hinge rod, 32 is a short hinge rod, 4 is a limiting component, 41 is a limiting groove, 5 is a bottom adjustment jack, 6 is a hydraulic support base, and 7 is a protective plate. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] The hydraulic support bottom adjustment device of this utility model includes a fixing component 1, a first ear seat 11, a second ear seat 12, a connecting component 2, a first pin 21, a second pin 22, a third pin 23, a fourth pin 24, a push rod component 3, a long hinge rod 31, a short hinge rod 32, a limiting component 4, a limiting groove 41, a bottom adjustment jack 5, and a protective plate 7.

[0017] like Figure 1-2As shown, the first ear seat 11, the limiting member 4, and the second ear seat 12 are arranged on the same straight line and are horizontal to the bottom edge of the hydraulic support base 6. They are fixedly installed on the hydraulic support base 6. The first ear seat 11 and the second ear seat 12 are respectively located on both sides of the limiting member 4. One end of the long hinge rod 31 is hinged to the first ear seat 11 through the first pin 21. The other end of the long hinge rod 31 is hinged to the short hinge rod 32 through the second pin 22. The other end of the short hinge rod 32 is hinged to one end of the piston rod of the bottom adjustment jack 5 through the third pin 23. The limiting groove 41 is set in the same direction as the movement direction of the piston rod of the bottom adjustment jack 5. The piston rod of the bottom adjustment jack 5 slides in the limiting groove 41. The short hinge rod 32 and the third pin 23 are slidably installed in the limiting groove 41. The base of the bottom adjustment jack 5 is fixedly connected to the fourth pin 24. The fourth pin 24 is hinged to the second ear seat 12.

[0018] like Figure 3-4 As shown, the two sets of bottom adjustment devices are set in opposite directions and are respectively set at the two top ends of the hydraulic support base 6.

[0019] like Figure 5-6 As shown, the protective plate 7 is fixedly installed on the hydraulic support base 6 above the bottom adjustment device. The width of the protective plate 7 is greater than any one of the fixing component 1, the limiting component 4, or the bottom adjustment jack 5.

[0020] In use, the piston rod of the lower chamber of the bottom adjustment jack 5 extends, causing the third pin 23 and the short hinge rod 32 to slide forward along the limiting groove 41. The hinge point of the short hinge rod 32 and the long hinge rod 31 then moves outward until it hits the side of the adjacent frame base, thus realizing the function of adjusting the frame. After the frame adjustment is completed, the liquid returns from the upper chamber of the bottom adjustment jack 5, causing the third pin 23 and the short hinge rod 32 to slide backward along the limiting groove. The hinge point of the short hinge rod 32 and the long hinge rod 31 then moves inward to reset, completing one full operation.

[0021] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A hydraulic support bottom adjustment device, characterized in that: The bottom adjustment device includes a fixing component (1), a connecting component (2), a push rod component (3), a limiting component (4), and a bottom adjustment jack (5). The fixing component (1) includes a first ear seat (11) and a second ear seat (12). The connecting component (2) includes a first pin (21), a third pin (23), and a fourth pin (24). The first ear seat (11), the limiting component (4), and the second ear seat (12) are respectively fixedly mounted on the hydraulic support base (6). The first ear seat (11), the limiting component (4), and the second ear seat (12) are arranged on the same straight line. The first ear seat (11), the limiting member (4), and the second ear seat (12) are positioned horizontally with the bottom edge of the hydraulic support base (6). The first ear seat (11) and the second ear seat (12) are respectively located on both sides of the limiting member (4). One end of the push rod assembly (3) is hinged to the first ear seat (11) through the first pin (21). The other end of the push rod assembly (3) is hinged to one end of the piston rod of the bottom adjustment jack (5) through the third pin (23). The base of the bottom adjustment jack (5) is fixedly connected to the fourth pin (24). The fourth pin (24) is hinged to the second ear seat (12).

2. The hydraulic support bottom adjustment device according to claim 1, characterized in that: The push rod assembly (3) includes a long hinge rod (31) and a short hinge rod (32). One end of the long hinge rod (31) is hinged to the first ear seat (11) through the first pin (21), and the other end of the long hinge rod (31) is hinged to the short hinge rod (32). The other end of the short hinge rod (32) is hinged to one end of the piston rod of the bottom adjustment jack (5) through the third pin (23).

3. The hydraulic support bottom adjustment device according to claim 2, characterized in that: The connecting assembly (2) further includes a second pin (22), and the long hinge rod (31) is hinged to the short hinge rod (32) via the second pin (22).

4. The hydraulic support bottom adjustment device according to claim 3, characterized in that: The limiting component (4) includes a limiting groove (41), the limiting groove (41) is set in the same direction as the piston rod of the bottom adjustment jack (5) moves in the same direction, the piston rod of the bottom adjustment jack (5) slides in the limiting groove (41), and the short hinge rod (32) and the third pin (23) are slidably set in the limiting groove (41).

5. The hydraulic support bottom adjustment device according to claim 1, characterized in that: Two sets of bottom adjustment devices are arranged in parallel, with the two sets of bottom adjustment devices arranged in opposite directions, and the two sets of bottom adjustment devices are respectively set at the two top ends of the hydraulic support base (6).

6. The hydraulic support bottom adjustment device according to claim 1, characterized in that: The bottom adjustment device also includes a protective plate (7), which is located above the bottom adjustment device. The protective plate (7) is fixedly mounted on the hydraulic support base (6). The width of the protective plate (7) is greater than any one of the fixing component (1), the limiting component (4), or the bottom adjustment jack (5).

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